L1TH0SIA COMPLANA, 21 



precise, "La region laterale est plus pale'' (than the 

 ground colour), " avec des lineaments noirs, marques, 

 a la place de la stigmatale, de traits fauves, isoles, tres 

 fins ; " and other descriptions also speak of a reddish- 

 yellow line running just above the feet. Now, the 

 description of molybdeola (before referred to) does not 

 help us much here, for it omits some particulars, the 

 importance of which was not then seen ; but the 

 figures show most distinctly that, while in complana 

 the spiracular region is occupied by one broader rust- 

 coloured line, in molybdeola there is first a fine line of 

 pale grey, then a line of the ground colour, and then a 

 narrower line of the rust colour ; and unless the 

 inspection of a larger number of larvae of molybdeola 

 can prove that this arrangement of lines is not 

 permanent, we have in it a good distinctive character ; 

 and perhaps anyone who could place the living larvae 

 side by side for comparison, would on a careful exami- 

 nation, find others equally good. (W. B. and J. H., 

 9, 12, 71; E.M.M. VIII, 174.) 



LlTHOSIA COMPLANULA. 



Plate XLI, fig. 3. 



Said to feed on lichens, though I have not found 

 this the case with the few I have reared ; the first I 

 had fed on oak ; others were taken on buckthorn and 

 dogwood, and this season one on Clematis. 



The larva is of nearly uniform thickness ; its colour 

 above is a very dark bluish-grey ; the head, plate on 

 the second segment, broad dorsal line and subdorsal 

 lines black ; the body furnished with black tubercles 

 and hairs, excepting an orange, lateral stripe beginning 

 at the fifth and ending on the twelfth segments, which 

 encloses the spiracles and extends to the prolegs ; the 

 tubercles and hairs on the latter being also orange 

 colour. (W. B. ; E.M.M. I, 49.) 



